Automatic compression-lubricator.



/ D. B. WILLIAMS.

AUTOMATIC OOB IPRESSION LUBRIOATOR.

APPLICATION FILED MAY 27,1904.

PATENTED APR. 4, 1905.

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Patented April 1905.

DICK B. XVILLIAt IS. OF SCOTTDALE, PENNSYLVANLX, ASSIGNOR TO LAGKAWAN NA LUBRTCATOR AND MANUFACTURENG COMPANY, A CORPQRA ION OF PENNSYLVANIA.

AUTOW'iATlC GQMPRES$EGN LFJEPJGA'E'QFL SETAGIFZUATION forming part of Letters Patent No. 786,702., dated April 4;, 1.905.

Application filed May 27, 1904:. deriel i n. 210,087.

To It when] ix/J may cancer/2,.-

Be it known that l, Dion B. WILLIAMS, a citizen of the United States, residing at Scottdale, in the county of Vestmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Automatic CompressionLubricators, (Case 13,) of which. the following is a specification.

This invention relates to force-feed lubricators of the type known as grease-cups and embodying a spring-pressed or springactuated piston or follower which serves to press the lubricant out oi the cup or receptacle and force it to the part to be lubricated.

A special object of the invention is to provide simple and improved means for regu lating the tension of the pressure-spring according to the requirements of the "feed and the quantity of lubricant in the cup or receptacle.

/Vith these and many other objects in view, which will more readily appear as the nature of the invention is better understood, the same consists in the novel construction, combination, and arrangements of parts, which will be herein after more fully described, illustrated, and claimed.

In the accompanying drawings, Figure 1 is a vertical sectional view of a forcefeed lubricator or grease-cup embodying the pres ent invention. Fig. 2 is a similar view showing he tension-regulator in elevation to expose the flattened clearance-face for quick adjustment purposes. Fig. 3 is a view similar to Fig. 2, showing the tension-regulator turned to a position for bringing the flat clearance-face into the plane in the catch or holding-stud. Fig. 4 is a detail cross-sectional view on the line at 4 of Fig. 2.

Like numerals designate corresponding parts in the several figures in the drawings.

The lubricator embodying the present invention includes in its general organization grease cup or receptacle 1, containing the lubrie-ant. This grease cup or receptacle may be of any desired shape or capacity, but preferably provided with a detachable bottom cap 2, having an on tlet-nipple 3, designed to be screwed or otherwise fitted to the part to be lubricated and provided therethrough with deliver: passage at, through which the lubricant is delivered. In the construction shown the bottom cap 2 is provided in the upper face thereof with a discharge-gutter 5, the base which is pierced by a plurality of ports 5 in communication. with the delivery passage t, and the outlet ends of which ports are controlled through the medium of a regulating-screw 7, adj ustably mounted in the upper end of the passage 4. This construction provides means for regulating the quantity of flow through the delivery-passage.

The cup or receptacle 1 containing the lubricant also accommodates for movement therein a close-fitting piston or follower 8, carried at the lower end of the sliding pistonstem 9, working through the guiding-opening 10, formed centrally in the flanged adjusting-head 11 at the upper end of the tubular tension-regulator 12. This tensionregulator 12 is in the form of an elongated tube rotatably and slidably fitting in the guiding-sleeve 13, projecting from the top of the cup or receptacle 1, and is designed to house therein the main pressure-spring 1st. This spring is arranged about the sliding piston-stem 9 and has its opposite ends bear, respectively, against the head 1. of the tensionregulator and the upper side of the piston or follower S. The said piston or follower 8 is caused to press upon the lubricator at any desired pressure, according to the tension of the main pressure-spring 14:. This tension is regulated through the adjustment of the tubular tension-regulator 12, which is designed to be adjusted up and down within the guidingsleeve 13 and held fixed at the desired adjustment through the medium of a locking connection between the regulator and the cup or receptacle. The locking connection between the adjustable tension-regulator and the one or receptacle is provided for by constructi. the tubular part of the tensionregulator 12 with a series or plurality of spaced annular locking-grooves 15, each of which is designedto have the shouldered por tion thereo'l turned into locking engagement with a catch-stud 1e, rigidly fitted to the guidiug-slewre l3 or other suitable part of the cup or receptacle and projecting inwardly into the longitudinal plane oi the tubular tension-regulator. By reason of having a series of the locking-grooves 15 at spaced intervals, each of which; is designed to separately engage t ie stud 16, means are necessarily provided for holding the tensionregulator at variable points within the guiding-sleove, and hence serving to regulate the tension of the press1n-e-spring according to the requirements of the lubricator.

.ln order to ell'ect a quick longitiulinal a ljustnient of the tubular tension-regs!later l2 and permit any or the grooves to become interlocked with the stud 16, the present invention. contemplates providing the tubular part of the t0]KSlOll-1'0fTUlttOi 2 with a longitudinally-disposed flattened clearanceface 17, formed on the exterior surface of the tube and extending across the plane of the several lcoking-grooves, thereby interrupting the ribs forming said grooves. ,he lattened clearai'lce-iace 1? lies in the plane ol the bases of the grooves, so that when such face is brought into the plane ol the stud l6,

shown in Fig. 3, the tubular tensionregulator may be adjusted longiiuidinally ithin the guiding-sleeve and then turned to bring any desired groove into engagement with the stud 16, according to the tension to be placed upon the pressure-spring.

stated, the piston-stein l) slidablyw rks .A LS through the guidirig-opening 10 at the upper end of the tension-regain.tor and preferably has titted on its exterior terminal a cappiece 18, which constitutes a limiting-stop for the ern when moved inward to its e3- treine limit, as plainly shown in Fig. 1 of the drawings.

From the foregoing it is thought that the construction, operation, and many advantages of the hereimdescribed force-feed lubricator will be readily apparent Without further description, and it Will be understood. that various changes in the form, proportion, and minor details of construction may be resorte to Without departing from. the scope ol the invention or sacrificing any of the advantag thereof.

Having thus described the i1ivention,What is claimed, and. desired to be secured by Letters Patent, is-

In a lubricator of the class described, a cup or receptacle provided with a guiding-sleeve and an in wardly-proj ecting catch-stud, a tubular teinsion-regulator slidable and rotatahle Within the guiding-sleeve and provided in its tubular part with a plurality of spaced annular locking-grooves and with a longitudinally-disposed flattened clearance-space crossing the plane of the grooves and inter rupting the ribs torinin g the same, the piston, and a spring interposed between the piston and the tension-regulator.

In testimony whereof I al'liX my signature in presence of two Witnesses.

DlCK B. VJILLIAMS.

Witnesses J. M. SIAUFFER, jurrnun B. LOUCKS. 

